Temporary binder.



Patented May I, |900.

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' Patented may l, ma

J. BAUER.

TEMPURARY BINDER.

(Application filed Apr. 3 1899.)

2 Sheets-Shed 2 (No Mdel.)

STATES PATENT FFICE.

TEM PORA RY BINDER.'

SPECIFICATION forming part of Letters Patent o. 648,376, dated May 1, 1900.

Applicata nei Api-iis, 1899.

arrangement and combination of iiexible binding devices, in connection with means acting on the leaves inserted between theVv cover-sections for the purpose of raising the leaves at theirinner portions or crotch asthe cover-sections or leaves are opened out.

My invention also comprehends as an object the provision of an improved form of curved overlapping back portions for the binder Serial No. 711,573. (No model.)

vice which shall possess the capabilities of contraction and expansion and of bending laterally is provided by a closely-wound coiled spring. I have illustrated this particular construction of the flexible binding devices t-hroughout the drawings and have designated the same by the numeral 11. It will be una derstood, however, that I do not limit myself to the specific form of iiexible binding device shown, inasmuch as any other form which is capable of expanding and contracting and bending laterally-vas, for instance, a rubber tubing or rubber or elastic band or the like I consider 'within the spirit and scope of my invention.

In the most simple embodiment of the invention (illustrated in Fig. 1 of the drawings) I` show a temporary binder in which the exible binding devices 11 are merely secured at opposite ends to the respective binding or clamping strips 9 9' in any desirable manner. It is obvious that when the binder is open the inafter set forth.

Y In the accompanying drawings, Figure l is an elevation of the most simple embodiment of my invention with parts broken away..

Fig. 2 is an elevation ofanother form of the invention. Fig. 3 shows the binder of the Fig. 2 form open, Aparts in section and parts broken away. Fig. 4 is a rear elevation of Fig. 2. Fig. 5 is a view of one cover-section and connected parts of the Fig. 2 form. Fig. 6 is a detail view of the bar for forcing u'pwardly the leaves, showing the manner of detachably securing the ends of the flexible binding devices and also showing the hinge connection of said bar; and Fig. 7 is a fragmentary detail view of a preferred formof leaf to be used in connection with my invention.

Referring to the drawings, the'nu'meralsS S indicate the cover-sections of the binder, provided, respectively, with the rear binding or clamping strips 9'9, there being a flexible joint 10 between each cover-section and its binding or clamping strip.

Referring to the iiexible binding device employed by me, practice has demonstrated that a 'convenient form of Ilexible binding de` flexible binding devices will lengthen or expand as the inner portions of .the divided leaves Vdraw away from each other in the process of opening, and said flexible binding devices will also bend upwardly, thereby per` v mitting the leaves to be more readily turned and securing a less abrupt bend to the leaves than would otherwise be the case. t The flexible binding devices in the process of expanding of course necessarily turn' the clampingstrips 9 9 at angles. When the binder is closed, the exible binding devices of course contract to a normal length and the upward bow is necessarily taken out of the flexible binding devices.

The detachable .leaves are indicated by the numeral 12, and these leaves are provided with openings 13 for the passage therethrough of the exible binding devices 111. Straight cuts 14 preferably extend from the openings 13 rearwardly to the rear edge of each leaf. (See Fig. 7.) When it is desiredto-insert a leaf, the binder is opened and the ngers fplaced in the crotch ofthe leaves formed by the divided leaves, and thetwo divided sec tions of the leaves thereby forced apart. Another leaf is now inserted and the straight cuts 14; thereof forced past the iiexible-binding devices until the openings 13 of the leaf are reached, the flexible binding devices nally IOO v this purpose.

fitting saidopenings. kA 1eaf is removed by forcing; the sections of the dividedy leayesA apart, as before explained, and then merely pulling outwardly on a leaf and freeing it from engagement with the binding devices.

As it is desirable that the leaves, when the binder is opened, should be forced upwardly at the rear portions thereof, so as to diminish to the greatest possible extent the bend in the leaves, and lconsequently makethem lie as hat as possible in order to facilitate writing thereon, I haveshown/in-'Figs 2 Vto 6 of the drawingsv a construction f for accomplishing Referring to these figures, it will be seen that the clampingstrips 9 9 each have aV plate secured to the inner side.

:'Each plate is provided withsets of projecting knuckles 16 16. 4 Each cover-sectiony has se-A curedto itsinner sidestraps 17 17, the ends of saidl straps being provided with knuckles 18, each one of which being located between and in line with .two of the knuckles 16 and closely adjacentto one of said knuckles. The

straps are'al'so provided .with laterally-extending lugs 19.

.The numerals 2O 2O indicate bars which ex# l tend parallel with the binding orr clamping strips99. v These'bars have their inner sides rounded or convex, as clearly shown.' Y The ends of the flexible binding devices 11, e'x-l.- tending through theleaves, also pass through the widest portionsof these bars andare pref#Y erably removably secured by means of rods 21 ,21, which extend through terminal( eyes 22 22,; formed atzthe extremitiesof the ilexi-` ble binding devices.. Each bar 2O has extenda.

ing .therefrom theprojecting straps 23.23,. eachifstrapbeing-provided at its extremity adapted to be .engaged by the lugs .19 when thebin'der is open, as will be hereinafter more fully explained.v l

The .plates 15zare advisably providedwith.- openings'27, which are adapted toreceive and accommodate theV eyes 22 of the iiexiblefbind- 1 ing devices when the binder is closed, so that i thepartswill lit as closely togetheras vpos- In the operationiof the mechanismfor forcingfthe -inner1portion Vof. the leaves l2`up-' wardly, when thebinder is Vbeingopened, the cover-sections will turn on the hinges formed. bythe several knuckles andthe pinsj'or pin-s tles, hereinbeforedescribed, and just before the binder has .beenfully opened the lugs19l ofthe straps 117 will contact withjthe'shouldersj26 of the straps v23, and therebythrow said'strapsl upwardly, so as't.cause the. roundedsides ofthe -bars 20.to actagainst, theleaves and .thrust ,said leavesV upwardly,. as clearly shown in- Fig. 3. The sidesof the;

bars 20 adjacent to theleavesare rounded orconvex, Hso as to avoid sharpcorners being brought into contact with the leaves, which would mutilate or cut Athe'same.

It will be observed that the plate--15 and the straps 17 are secured, respectively, to the binding-strips 9 9l and the cover-sections 8 8 by means of screwsp When, therefore, the ycover-sections and the binding-strips after continued use of the binder become worn, they may be readily detached from the plate 15 and the straps 17 and new cover-sections andlbinder-strips secured in place thereof.

The back of the binder is shown as. formed of plates 27 27', slidingly fitted together, so as to widen or narrow ther space withtheincreased or diminished thickness of the binder. The outer edges ofl these plates are flanged, V.andthe flanged portionsfare secured to the binding-strips 9 9.

of the leaves to' permit of the binding-strips 9 9l spreading apart,'and were the binding-strips 9 9 held stationary it would be impossible to accomplish the `upward forcing of the leaves. At the samev time, however, it is. desirable when the binder is opened to hold the bind'- ingfstrips as .nearly upright las possible, or, in` other words, in the position shown-in Fig. 3. This I Vaccomplish by providin'gan ordinary form ofV lazy-tongs, (designated 4by the numeral 28,) the outer ends of -thelevers of said tongs be'ingconnected to projecting lugs usual elongated slots, through Lwhich screws pass and enter the other levers. When it is ldesired to insert or remove a leaf,the .fingers previously explained, andthe dividedasehctions of the leaves spreadapart, and in order to lock the binder in thislposition I provide of which areadapted to engageapin'l, Vextongs'. conveniently lockedin its.s pread'apart .condition until a leaf is inserted or removed in the crotch of the leaves.

plates, which are adjacent totheY sideedges provided, respectively, with inwardly-turned flanges 33,'secured, respectively, tothe inner sides of said binding-strips. also has its forwardedgeturned inwardly, forming a guideway 34, in which the forward ,edge of the plate32 fits and slides.V The rear thearc of a circle, and these rear edgesare bent laterally inwardly to form curved supplemental back portions 3 5, the convexities of *thecurves'being outermost. By this Qprovision; the binder when. opened is permitted to 35, the circles described `by said back yiianges It is necessary where provision is made for, thrusting the leaves upward-lyat thecrotchA 29. Two of .the levers are provided with the.

are insertedin thecrotch of the leaves, .as

4a dog 30, provided with a series`of-.teeth,.anyl

tendingfrom one ofthe levers :offthelazy-V In this manner the, binder. can. be

without the necessityv of keeping-the fingers.

The numerals 32 :32' indicaterear side 'of the binding-stripsr9'9. These :plates are Each plate32" -edges lof the plates 32.an'd 32'` are curvedl .in

lturnon the `curved back flangesorportions IOO IIO

being in the same or substantially the same arc, so that no matter to what extent the cover-sections are adjusted apart-that is to say, whether the space between them is increased or diminished by the insertion ot additional leaves or the removal of leaves, as the case may be-the binder is permitted to turn on the curved back portions, whereby the effect of a continuous rounded back is obtained and the leaves thereby permitted to lie more nearly fiat than could possibly be the case if the blinder were provided with a straight or dat back or with a curved flange extending only from one of the bindingstrips.

By the particular manner of' connecting the ends of the fiexible binding devices 1l-viz.,

ot the supplemental back portions are pro-l vided with dovetail grooves 36, in which are tted dovetail tongues projecting from wear- 'strips 37, of leather or any other-desirable material.

What I claim as my invention is- 1. In a temporary binder, or book, the combination, of cover-sections, a binding device or devices adapted to be inserted through the openings in leaves disposed between the coversections and said binding device or devices,

being expansible, and contractible and bendable laterally, mechanism engaging the ends of the binding device or devices between the cover-sections and the leaves, to prevent said device or devices from being withdrawn through the openings of the leaves, and means acting on the leaves for the purpose of raising said leaves at their inner portions or crotch, as the cover-sections and leaves are opened out.

2.- In a temporary binder, or book, the combination, of cover-sections, a fiexible binding device or devices adapted to be inserted through the leaves disposed between the cover-sections, bars bearing against the leaves and to which bars the ends of the binding device are secured, and means for raising said bars, as the binder or book is opened, in order to forcethe inner portions or crotch of the leaves upwardly.

3. In a temporary binder, or book, the combination, of cover-sections, a flexible binding device or devices adapted to be inserted through the leaves disposed between the cover-sections,bars bearing against the leaves and through which bars the ends of the binding device pass, and are secured on the outer sides of the bars, and means for raising said bars, as the binder or book is opened, in order to force the inner portions or crotch -of the leaves upwardly.

4. In a temporary binder, or book, the combination, of cover-sections, a iiexible binding device or devices adapted to be inserted through the leaves disposed between the coversections,bars bearing against theleaves and to which bars the ends of the binding device are secured, the sides of said bars bearing against the leaves being convex, and means for raising said bars, as the binder or book is opened, in order to force the inner portions or crotch of the leaves upwardly.

5.A In a temporary binder, or book, the combination, of cover-sections provided with rear hinged binding-strips, a flexible binding device or devices adapted to be inserted through the leaves disposed between the cover-sections, hinged bars extending along the binding-strips and bearing against the leaves, and to which bars the ends of the binding device are secured, and lugs or contacts carried by the cover-sections and adapted to act on the hinged bars, as the book or binder is opened, so as to throw said hinged bars upwardly, in order to force the inner portions or crotch of the leaves upwardly.

6. In a temporary binder, or book, the combination, of cover-sections provided with rear hinged binding-strips, plates secured to the rear binding-strips, a strap or straps secured to each cover-section and provided with projecting lugs, a fiexible binding device or devices adapted to be inserted through the leaves disposed between the cover-sections,

and bars extending along the binding-strips and bearing against the leaves, and to which bars the ends of the binding device are secured, said bars, the straps, and the plates4 straps removably secured to each cover-sec- Y tion and provided with projecting lugs, a flexible binding device or devices adapted to be inserted through the leaves disposed between the cover-sections, and bars extending along the binding-strips and bearing against the leaves', and to which bars the ends of the binding device are connected, said bars, the straps, and the plates having a hinge connection, and the lugs of the straps adapted to act on shoulders provided at the hinge connection of the bars, whereby said bars are raised and caused to act on the inner portions or crotch of the leaves, in order to raise said leaves.

S. In a temporary binder, or book, the combination, of cover-sections provided with rear hinged binding-strips, a flexible binding device or devices adapted to be inserted through the leaves disposed between the cover-sections, hinged bars extending along the bind- IOG ICS

IIO

ing-strips andbearing against thev leaves, and `to which bars the ends of the binding devices areV connected, means'for raising said .hinged v barsyas the binder or book is. opened,where. by the inner vportions of the leaves are raised upwardly, and means for locking the bind-r l ing-strips and holding said strips in upright'v position, after said strips are spread apart by theopening of the cover-sections and leaves. E .9. Ina temporary binder, or book, the c-oin-v -bination, ofcover-sections provided with .rear

hingedbinding-strips, a 'exible binding de-` Nvice or devices adapted to be inserted through v the-leaves disposed between the coversec-l tions, hinged bars extending along the binding-strips and bearing against the leaves and' v to' 'which bars the ends of the binding devices l 'are connected, means for raising said hinged l bars, as the binder or book is opened,where. by the inner portions of the leaves are forced Q upwardly, and a lazytongs connecting .the rear binding-strips. i

10. In atemporary binder, or book, the comsaid flanges being curved outwardly, or con- Vex` on their outer sides. Y i

l2. In a temporary binder, or book', the combination, of cover-sections adapted to be adjusted closer together or farther apartyplates secured respectively tothe side edges of the rear portions of the coversections and slid -ingly fitted together, the rear edges of said .plates provided with inwardly-turned anges,

said flanges being curved outwardly, or convex on their outer sides, and said convex nination, or cover-sections provided with rear f .hinged binding-strips, a iiexible binding de-V vice or devices'adapted to be inserted through the .leaves disposed between the cover-see-l tions,'liinged bars extending along the binding-strips and bearing against the leaves, and Vto which bars the'endsof the binding device are connected, means for raising said hinged outer sides being provided with grooves, and strips ittedin said grooves.

In testimony whereof I affix my signature in presence of two witnesses.

' JULIUS BAUER. Witnesses: y

A. L. MoRsELL, ANNA V. FAUs'r. 

